Furnace.



they clog the spacein rear thereof 'and pre--l v vent the grate beingswung back into nondumpingposition. 1t is obvious thatshouid theclinkers accumulate vor vdrop behind the grate, gr'e'a't diiiicultywould be experienced in removing them, and another serious dis-.'advantage would be that the grate would be held opensc as to admit anlnrushing current of air through theire box, throu h the ash pit andover the fire, thereby ecreasing the efficiency of the furnace.

With a construction of furnace and grate bridge wall of clinkers andother :foreign 1 matter and permit them to drop in behind'- the grate sothat any liability of clog 'ng at the dumping portion ofthe grate Wil beavoided.4

Having describedmy A:invention *what I'- Aclaim is:

Copies ofthis patent may be qbtaned for lve cents each,

. 1. A furnace having a bridge wall .with an overhanging portion, aseries of grate bars forming an inclined rate and terminating in frontof the ove' anging ortion,

a dumping grate va-t-the foot of the .inclined grate and having'A arearwardly extending grate and having said .lip terminating at the angleof vintersection of the inner and horizontal faces of the* overhangingportion, 'said' '.dumping grate u being pivoted between" its front andrear ends whereby the lip'on the grate in rear of its pivoted portionwill swing above and away from the intersection of the inner and.horizontal faces to.free the frontfacenot the bridge wall'of clinkersand permit them to'drop down between the 'dumping grate and theoverhanging portion.

2. A furnace havlrig a4 bridge Wall with' an overhanging ortlon, aseries of grate bars forming an lnclined* grate terminating in front ofthe overhanging portion, a dumping grate at the foot ofthe 'inclined arearwardly extending upwardly c urve lip terminating at the 'angle ofintersection 'of the inner and horiv ortion,

zontal facesof the overhanging dumping grate being pivoted tween itsfront and rear ends whereby the lip on the grate in rear oflits ivotedportion -will swing above and away om the intersection of theinner andhorizontal faces to free the front face of the bidgefwall' of -clinkersand permit them .to-.drop down between the dumping'grate and theoverhangingvportlon. .A l

In. testimony whereof, I have 'hereunti subscribed myname this 15th'dayi'foSMay, 1.909.

Witnesses:

11F. FUNK, um f' lJ.'Gr. WORKER.

Washington' D. G.

.FRANK C. RMSTEAD.

by add-easing the l Gommiasoner oPatents. l

